Next, you'll need to create a bootable USB installer (involves another external drive). Choose to install macOS from the connected USB drive. But you can do it easily through the below steps format USB Drive on Mac OS X. Click on the dropdown at the top and select your USB drive. (Make sure you select the drive and not the partition.) Give the disk a name of SanDisk, select MacOS Extended (Journaled), GUID Partition Map then click Erase.
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How to erase the current macOS Connect your second "Untitled" USB drive (the one with a bootable installer). Search for "disk utility" and open Disk Utility. Create a Bootable USB Drive For MacOS High Sierra easy step by step - Duration: 7:38. Using the Disk Utility, erasing the Disk and formatting it as APFS with a GPT Partition scheme. These assume that the installer is in your Applications folder, and MyVolume is the name of the USB flash drive or other. To format a drive on a Mac, you'll need the built-in Disk Utility application.
Choose a new name for the formatted drive and click Erase. Select the drive you want to format from the left-hand navigation menu. Open Terminal, which is in the Utilities folder of your Applications folder. On the left side panel, you will see the USB drive name. Click the Format pop-up menu, then choose a file. Or search for Disk Utility in Mac's Spotlight Search. Once you have your bootable installer ready, it's time to move to the next step. Using the Terminal, unmounting the disk diskutil unmountDisk disk0, where disk0 is the internal NVME drive. Navigate to Applications > Utilities and choose Disk Utility.
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Create a Bootable USB High Sierra Installer in Mac OS X 10.13 Gemsbok Apple Tips and Tricks. Command+R: Boot into Recovery Mode and reinstall the latest version of macOS on your Mac.
And lastly, we'll use Disk Utility to erase your Mac and install macOS Big Sur using the bootable USB. Next, hit CMD+space to open up Spotlight search on your macOS. Keep your finger held down on the "Option" button until you see a list of devices appear on-screen. Image: Launch Terminal app Terminal helps you manage your external hard drive far better than the GUI. Step 3: Connect the USB Drive, open the drive in Finder, and ensure that there's nothing on it that you need. The first step is to clean and back up your Mac to some external source. When you click this button, you're presented with three options for securely erasing the free space on your hard drive: write over the free space with zeros (fast and relatively safe), write over. For startup disk, start or restart your Mac, then press-hold Command + R keys. : WARNING: "-applicationpath" is deprecated in macOS 10.14 and greater. Alternatively, you can also open it from Applications > Utilities.
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